ci(stress): drop per-main-push trigger; run nightly + on-demand only#135
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The stress lane ran on every push to `main` — a ~13-25 min ubuntu run per merge, the single biggest GitHub Actions-minute sink, for a post-merge signal the nightly run already covers. Remove the `push: [main]` trigger. It now runs: nightly (environment drift), `workflow_dispatch` (manual), and opt-in per-PR via a `stress` label (a job-level `if` filters to that label so other label events spin up no runner). Concurrency now cancels superseded PR-label runs; scheduled runs are never cancelled. (ci.yml already cancels superseded PR runs and skips docs-only diffs, so no change needed there.) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Saves the bulk of our GitHub Actions minutes.
The cut
The
stresslane ran on every push tomain— a ~13–25 min ubuntu run per merge (CPU-starvation-sensitive single-thread soak), for a post-merge signal the nightly run already provides. This removes thepush: [main]trigger.It now runs:
cron, environment-drift coverage) — unchangedworkflow_dispatch(manual) — unchangedstresslabel — a job-leveliffilters to that label, so other label events spin up no runnerConcurrency now cancels a superseded PR-label run; scheduled runs are never cancelled.
Already in place (no change needed)
ci.ymlalready hasconcurrency: { group: …${{ github.ref }}, cancel-in-progress: pull_request }— cancels superseded PR runs, deliberately letsmainruns finish.ci.ymlalready skips docs-only diffs (detect docs-only).So this PR is just the one high-leverage change.
stresswas never a required PR check (it didn't run on PRs), so dropping the main-push trigger doesn't affect merge gating.🤖 Generated with Claude Code